3. INSPECTION/ADJUSTMENT ATV 50
Clean the oil filter screen with compressed
Filter Screen
air.
Install the oil filter in the reverse order of
removal and fill the oil tank with specified
oil up to the proper level.
Bleed air from the oil pump and oil lines.
· Connect the oil tubes securely.
· Install the tube clip at the oil tank side
and also install the clip to the lower oil
tube that goes to the oil pump.
· Check for oil leaks.
Oil Pump Condition Control Aligning Mark
Adjust oil pump control cable after the
throttle grip free play is adjusted.
Open the throttle valve fully and check that
the index mark on the pump body aligns
with the aligning mark on the oil pump
control lever.
Reference tip alignment within 1mm of
index mark on open side is acceptable.
Start and idle the engine, then slowly open
the throttle to increase engine rpm and
check the operation of the oil pump control
lever. Lock Nut Adjusting Nut
If adjustment is necessary, adjust the oil
pump control cable by loosening the control
cable lock nut and turning the adjusting nut.
After adjustment, tighten the lock nut.
Reference tip alignment within 1mm of
index mark on open side is acceptable.
However, the aligning mark on the
control lever must never be on the
closed side of the index mark, otherwise
engine damage will occur because of
insufficient lubrication.
If the oil pump is not synchronized
properly,
the following will occur:
· Excessive white smoke or hard starting
due to pump control lever excessively open
· Seized piston due to pump control lever
insufficiently open.
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